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Blamsoft VK-1 Viking User Manual

Synthesizer
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1.0.6 User Manual

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Summary of Contents for Blamsoft VK-1 Viking

  • Page 1 1.0.6 User Manual...

  • Page 2: Performance Control

    The Pitch Wheel affects the pitch of the three oscillators. The Mod Wheel controls the amount of modulation due to the Mod Wheel modulation bus. The Pitch Range sets the maximum number of semitones that the Pitch Wheel can adjust the oscillator pitch. © 2013 Blamsoft, Inc. All rights reserved.
  • Page 3 PWM as the knob is swept from left to right. A triangle is useful as a mellow sound, a saw as a bright and buzzy sound, a square as a hollow digital sound, and a PWM as a © 2013 Blamsoft, Inc. All rights reserved.
  • Page 4 This image shows the oscillator with the Wave knob slightly past saw toward square. As the waveform transitions from saw to square the pulse becomes wider and the ramp becomes lower and shorter. © 2013 Blamsoft, Inc. All rights reserved.

  • Page 5: Sync Switch

    The Oscillator 3 Keyboard Control Switch selects whether or not the keyboard controls the pitch of Oscillator 3. When set to on, Oscillator 3 tracks the keyboard. When set to off, Oscillator 3 is a C#3 pitch. © 2013 Blamsoft, Inc. All rights reserved.
  • Page 6 4’ matches the keyboard notes as usual. When it is set to low frequency, the pitch of Oscillator 3 is six octaves below what it would be in the high frequency setting. © 2013 Blamsoft, Inc. All rights reserved.
  • Page 7 At first it may seem like the switches enable the oscillators and noise source themselves. But actually the oscillators and noise are always available as modulation sources. These switches and knobs control the audio mix. © 2013 Blamsoft, Inc. All rights reserved.
  • Page 8 The resonance knob adjusts the gain of positive feedback from the output of the filter to the input. It creates a peak in the filter response at the cutoff frequency. A narrow bandpass filter is created at that frequency resulting in a ringing sound. © 2013 Blamsoft, Inc. All rights reserved.

  • Page 9: Frequency Response

    This image shows the frequency response of Viking’s 24 dB per octave lowpass filter. The low frequencies have a flat response and frequencies past the cutoff point are attenuated. When less the 4 poles are used, the slope is not as steep. Gain Frequency © 2013 Blamsoft, Inc. All rights reserved.
  • Page 10 Now the resonance knob has been turned up. Notice the peak at the cutoff frequency. Gain Frequency © 2013 Blamsoft, Inc. All rights reserved.
  • Page 11 When in Highpass/Lowpass mode, one of the filters is a highpass filter. The two filters are connected in series to create a bandpass filter. Here is the highpass filter section. Gain Frequency Note that the lowpass filter is always the resonant filter. The highpass filter does not resonate. © 2013 Blamsoft, Inc. All rights reserved.
  • Page 12 24 dB per octave. Half an octave of downward slope is marked on the graph to show that the slope is truly 24 dB per octave. 12 dB (10 per division) 1/2 Octave (1 per 5 divisions) © 2013 Blamsoft, Inc. All rights reserved.
  • Page 13 When a key is press the first three phases occur. When the key is released the Release phase occurs. Sustain Release Decay Attack © 2013 Blamsoft, Inc. All rights reserved.

  • Page 14: Sustain Pedal

    Classic mode. Sustain Pedal When the sustain pedal is depressed the envelope will stay in the sustain phase as if a key is held down. © 2013 Blamsoft, Inc. All rights reserved.
  • Page 15 When Keyboard is selected, the LFO waveform resets any time a key is pressed. Sync locks the LFO to the current tempo and changes the meaning of the Rate knob to beat divisions. © 2013 Blamsoft, Inc. All rights reserved.

  • Page 16: Oscillator Frequency

    Turning this control down will fix the frequency at an exact rate. Turning it up magnifies the effect. © 2013 Blamsoft, Inc. All rights reserved.
  • Page 17 Filt Env uses the Filter Envelope as shaping. Velocity uses the MIDI velocity of the current note. Pressure uses MIDI aftertouch. And PGM mean the option is selected in the programmer. © 2013 Blamsoft, Inc. All rights reserved.
  • Page 18 If you don’t want to use a modulation bus, set its Amount to zero or choose the source as PGM with Off selected in the programmer. See the Programmer section for an explanation of more modulation parameters. © 2013 Blamsoft, Inc. All rights reserved.
  • Page 19 S+H Filt - The Sample and Hold waveform smoothed by a filter Osc 1 - Oscillator 1 Osc 2 - Oscillator 2 © 2013 Blamsoft, Inc. All rights reserved.

  • Page 20: Filter Programming

    The Circuit setting chooses between two DSP algorithms. The Linear method uses a transfer function in the z domain that was derived using frequency domain concepts. This is the most common form of DSP algorithm and enables fast computation. The Nonlinear method uses © 2013 Blamsoft, Inc. All rights reserved.
  • Page 21 It is easier to control the detuning the oscillators if Fine adjustment is enabled. Release (On) – This button enables the release phase of the envelopes. Generally, this will be enabled, but if an abrupt note cutoff is desired, the release can be disabled. © 2013 Blamsoft, Inc. All rights reserved.

  • Page 22: Audio Connections

    The right jack always has the same output, which is from one filter that is not affected by Spacing. In Highpass/Lowpass mode, both jacks have the same mono output of the filters in series. © 2013 Blamsoft, Inc. All rights reserved.
  • Page 23 Trig – A signal that will be used instead of the LFO for triggering the Sample and Hold circuit OSC Wave OSC1, 2, 3 – Adjusts the waveform setting for each oscillator. See Wave knob. © 2013 Blamsoft, Inc. All rights reserved.
  • Page 24 You may want to turn a knob on the panel fully down so unipolar CV will have the most impact. For bipolar CV, the parameter will move up and down from its internal level. © 2013 Blamsoft, Inc. All rights reserved.
  • Page 25 S+H – The LFO Sample and Hold value (bipolar) S+H Filt – The LFO Sample and Hold waveform smoothed by a filter (bipolar) Envelopes (unipolar) Filter – The filter envelope Vol – The volume envelope © 2013 Blamsoft, Inc. All rights reserved.
  • Page 26 29 - volume_decay 30 - volume_sustain 31 - volume_release - master_volume 36 - pitch_range 37 - lfo_rate_synced 39 - fine_tune 40 - osc1_octave 41 - osc2_freq_sensitive 42 - osc2_octave 43 - osc3_freq_sensitive 44 - osc3_octave © 2013 Blamsoft, Inc. All rights reserved.
  • Page 27 "KB Cont", "KB 3" three_frequency - "OSC3 Frequency Range", "Range 3", "Rang" external_mix - "External Amount", "Ext Amt", "AmtE" external_on - "External", "Ext On", "OnE" osc1_mix - "Oscillator 1 Amount", "OSC1 Amt", "Amt1" © 2013 Blamsoft, Inc. All rights reserved.
  • Page 28 Source", "Gate Src", "GSrc" kb_mode - "Keyboard Mode", "KB Mode", "KBMd" osc2_freq_sensitivity - "OSC2 Frequency Fine", "OSC2 /10", "2/10" osc3_freq_sensitivity - "OSC3 Frequency Fine", "OSC3 /10", "3/10" release_on - "Release", "Rel On", "Rel" © 2013 Blamsoft, Inc. All rights reserved.

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